Dude, its awsome! It looks great!
I've seen movies like this with real humans, that jumped about 30 feet far from building to building. I will look if I can find it.

And btw, do they twist with the mouse and look around?

http://www.zanik.pl/filmy/ there are 2 streetclimbing movies.
Search for th word "Street" and you'll find them both.
But the probvlem s the links are dead now